Group size estimator
How many trainers do I need to invite?
Invite 3 to be safe — 2 if everyone is prepared
- Boss CP
- 22,085
- Boss HP
- 4,000
- Raid timer
- 180s
- Party used
- 6
Trainers needed, by attacker level
Scroll sideways for the mixed-lobby column.
| Attacker level | Six of the best counter | A prepared party | A mixed local group | Prepared solo time | Faints per timer |
|---|---|---|---|---|---|
| Level 20 | 3(2.56) | 3(2.70) | 4(3.67) | 7:55 | 5.9 |
| Level 25 | 3(2.15) | 3(2.24) | 4(3.08) | 6:34 | 5.8 |
| Level 30 | 2(1.98) | 3(2.04) | 3(2.74) | 5:59 | 5.5 |
| Level 35 | 2(1.89) | 2(1.96) | 3(2.62) | 5:45 | 5.3 |
| Level 40 | 2(1.65) | 2(1.85) | 3(2.44) | 5:25 | 5.3 |
| Level 45 | 2(1.60) | 2(1.81) | 3(2.36) | 5:18 | 5.1 |
| Level 50 | 2(1.56) | 2(1.74) | 3(2.28) | 5:05 | 4.9 |
Whole trainers in bold, the raw estimator in brackets — 2.04 means two trainers is right on the line and three is comfortable.
Six of the best counter
Every trainer brings six copies of the single best counter — the theoretical floor.
2 trainers at level 40
- Necrozma (Dusk Mane)1.65
A prepared party
Each trainer brings the boss's top six counters, powered up and correctly TM'd.
2 trainers at level 40
- Necrozma (Dusk Mane)1.65
- Zacian (Crowned Sword)1.66
- Zamazenta (Crowned Shield)1.72
- Keldeo1.80
- Blacephalon2.09
- Terrakion2.18
A mixed local group
Ranks 13-24: reasonable but unoptimised parties, which is what a public lobby usually is.
3 trainers at level 40
- Kartana2.31
- Metagross2.35
- Dialga2.39
- Urshifu (Rapid Strike)2.39
- Volcarona2.42
- Eternatus2.44
The party these numbers assume
See the full ranked counter list for Regice · check a real lobby (win chance, who brings what) · make a share card of the top six
How this is worked out
The boss is ranked once at level 40 with rankCached (the same memoised call /raids makes), then the three bands — rank 1, ranks 1-6, ranks 13-24 — are re-simulated at each attacker level with an 8-run Monte Carlo each. Holding the party fixed and moving only its level is deliberate: it answers "what if my party were level 20" rather than "what would a level-20 player's completely different party be", and it is about ten times cheaper than re-ranking every attacker seven times. The Estimator itself is Pokebattler's definition, time to win including rejoin time divided by the raid timer.